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The engineering coworker for physical products

Hardware teams use Howard for the work between the brief and the CAD: architectures, calculations at the real condition, and an argument that updates when the chamber disagrees.

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Calculation pack rev A · sealed 40 W module

40 W module, IP66, 4000 m, cold start at −40 °C, five years outdoors. Don’t cook the board. Don’t shatter the seal.

Dry‑air density at altitude
0.7864kg/m³
ISA + CoolProp · 4000 m, 0 °C
Series resistance, die to ambient
1.281796K/W
r_network · conduction + natural convection
Rise over ambient at 40 W
51.2719K
r_network · steady state
CTE mismatch, Al lid to PC/ABS
0.41mm
cte_stack · −40 to +70 °C
Gasket compression set at cold start
refuse

The supplier sheet stops at −40 °C. Interpolating past it would invent a five‑year seal. Buy the cold‑set test, or pick a grade rated lower.

Built with 10 hardware teams

Sealed computeOutdoor IoTConsumer devices Industrial sensingRoboticsEnergy storage

Mechanical engineers don’t lose weeks in SolidWorks.

They lose them to datasheets written at 23 °C, to ChatGPT inventing thermal conductivity, and to solvers that will happily mesh the wrong box.

Howard is the associate that sits in front of the CAD and the chamber: intake, architecture, calcs, then a revision when the world disagrees.

One thread for the whole problem

Nothing is re‑typed, and nothing loses its condition.

Intake

The brief becomes a card you can edit

Function, climate, power, life, constraints — and the unknowns listed rather than assumed.

Architecture

Two or three concepts, each with a kill criterion

A materials family and the exact condition that would end that concept. You pick; Howard argues.

Calcs

Handbook physics at the real condition

Thermal networks, contact resistance, cold start, CTE stack, snaps and seals — at the temperature and altitude you actually have.

Sim

A door, opened only when 1D is invalid

Howard names the study and what to bring back. It does not pretend a mesh is an argument.

Evolve

Rev B on the same thread

The chamber disagrees, Howard patches the assumption that was wrong and recomputes everything downstream of it.

What you type

40 W module, IP66, 4000 m, cold start at −40 °C, five years outdoors. Don’t cook the board. Don’t shatter the seal.

What you get

  • CardA problem card you can edit.
  • ArchTwo or three architectures, and what kills each one.
  • CalcsCalculations that cite a table or a library — or a clear refuse when the sheet stops.
  • ThreadA thread you keep as the spec changes.

Every number in the memo came from a tool. If Howard doesn’t have k at that temperature, it says so.

Not a replacement for you

Howard doesYou still do
Structure the problemOwn the product
Propose how it could workPick the architecture
Run handbook physics at the real conditionStamp, tool, and test
Update the argument after a chamber runMake the call

Howard is decision support. It is not a PE license and not a test lab.

Built for the work you already do

Outdoor electronics

Sealed compute that has to survive a real climate, not a lab bench.

Consumer enclosures

Parts that have to drop, snap, and tool — at volume.

Revisions

When the first article comes back warped or hot, and the argument has to change with it.

If your job is “search the vault for a bracket we already designed,” other tools exist. If your job is “will this survive the climate we actually have,” that’s Howard.

Trust

Project isolation and honest limits

No training on your threads

Your projects, files and revisions are never training data.

Details →

A source under every number

Units, source and as‑of date travel with every numeric result.

Details →

Refusal over interpolation

Two bracketing points from one source at one condition — or Howard refuses.

Details →

Citation‑only sources stay uningested

MatWeb, CAMPUS and Granta are looked up, never embedded in the product.

Details →

Bring one real problem.

An enclosure, a seal, a thermal path. You’ll leave with a pack a senior ME can mark up, not a pretty mesh of the wrong machine.